Mikael Pettersson writes: > One of my machines just oopsed in ext3_put_super() > during reboot after a glibc update: > > > if (!list_empty(&sbi->s_orphan)) > > dump_orphan_list(sb, sbi); > > J_ASSERT(list_empty(&sbi->s_orphan)); > > Turning off swap: > Turning off quotas: quotaoff: Warning: No quota format detected in the kernel. > > Unmounting file systems: sb orphan head is 17 > sb_info orphan list: > inode sda2:17 at d7565a18: mode 100600, nlink 0, next 15 > inode sda2:15 at dd646ba0: mode 100600, nlink 0, next 0 > kernel BUG at fs/ext3/super.c:435! The exact same oops now happened on a different machine that also had done a glibc rebuild + upgrade followed by a reboot: Unmounting file systems: sb orphan head is 14 sb_info orphan list: inode sda7:14 at c2621dc8: mode 100600, nlink 0, next 12 inode sda7:12 at c2453c30: mode 100600, nlink 0, next 0 Unable to handle kernel NULL pointer dereference at virtual address 00000000 pgd = c3bd8000 [00000000] *pgd=00000000 Internal error: Oops: 8f5 [#1] Modules linked in: sunrpc af_packet ehci_hcd uhci_hcd ixp4xx_eth ixp4xx_npe firmware_class ixp4xx_qmgr e CPU: 0 Not tainted (2.6.31 #1) PC is at ext3_put_super+0x170/0x1e0 LR is at release_console_sem+0x1b0/0x20c pc : [<c00cb6b0>] lr : [<c002ecd8>] psr: 80000013 sp : c3945ec8 ip : c3945e08 fp : c3945ef4 r10: 00000000 r9 : c3945f60 r8 : 00000000 r7 : c38da484 r6 : c3adfc00 r5 : c38da3c0 r4 : c38da484 r3 : 00000000 r2 : c024ac9c r1 : 000030a4 r0 : 00000040 Flags: Nzcv IRQs on FIQs on Mode SVC_32 ISA ARM Segment user Control: 000039ff Table: 03bd8000 DAC: 00000015 Process umount (pid: 21959, stack limit = 0xc3944270) Stack: (0xc3945ec8 to 0xc3946000) 5ec0: 00008180 00000000 00000000 c01c5164 c3adfc00 c01c5164 5ee0: 00000000 c380ae20 c3945f0c c3945ef8 c0081aa4 c00cb54c c3402860 00000003 5f00: c3945f24 c3945f10 c0081b58 c0081a34 c3adfc00 c024e3ec c3945f3c c3945f28 5f20: c0082038 c0081b44 c380ae20 c3adfc00 c3945f5c c3945f40 c0094d04 c0081ffc 5f40: c380ae18 c380ae18 c380ae20 c380ae38 c3945fa4 c3945f60 c009524c c0094ca0 5f60: c3945f60 c3945f60 c3945f68 c3945f68 c380ae20 c15c1cb8 c002545c 00000000 5f80: 2a008164 2a00a798 00000034 c001ffc4 c3944000 00000000 00000000 c3945fa8 5fa0: c001fe40 c0094fb8 00000000 2a008164 2a00a798 00000001 00000001 00000274 5fc0: 00000000 2a008164 2a00a798 00000034 2a00a1e8 2a00a788 00000000 bea5ef07 5fe0: 00000000 bea5ea68 2a0020b4 401345cc 60000010 2a00a798 ffffffff ffffffff Backtrace: [<c00cb540>] (ext3_put_super+0x0/0x1e0) from [<c0081aa4>] (generic_shutdown_super+0x7c/0x110) r7:c380ae20 r6:00000000 r5:c01c5164 r4:c3adfc00 [<c0081a28>] (generic_shutdown_super+0x0/0x110) from [<c0081b58>] (kill_block_super+0x20/0x38) r5:00000003 r4:c3402860 [<c0081b38>] (kill_block_super+0x0/0x38) from [<c0082038>] (deactivate_super+0x48/0x60) r5:c024e3ec r4:c3adfc00 [<c0081ff0>] (deactivate_super+0x0/0x60) from [<c0094d04>] (mntput_no_expire+0x70/0xa8) r5:c3adfc00 r4:c380ae20 [<c0094c94>] (mntput_no_expire+0x0/0xa8) from [<c009524c>] (sys_umount+0x2a0/0x2d0) r6:c380ae38 r5:c380ae20 r4:c380ae18 [<c0094fac>] (sys_umount+0x0/0x2d0) from [<c001fe40>] (ret_fast_syscall+0x0/0x2c) This kernel runs on a memory-constrained machine, so it has fewer debugging features, but the oops location is the same J_ASSERT as before. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
